PLEASE HELP! f) 12r-25 = 4r +7 g) 5-6x = 2x + 5 h)3+ 7c = 2c- 3 i) 2(w + 13) = 3(5- w)

Step-by-step explanation:

F.) 12r - 25 = 4r + 7

Add 25 on both sides to get 12r = 4r + 32

Subtract 4r from both sides to get 8r = 32

Divide both sides by 8 to get r = 4

G.) 5 - 6x = 2x + 5

Subtract 5 from both sides to get -6x = 2x

Subtract 2x from both sides to get -8x = 0

x just straight up equals 0

H.) 3 + 7c = 2c - 3

Add 3 on both sides to get 6 + 7c = 2c

Subtract 7c from both sides to get 6 = -5c

Divide both sides by -5 to get 6/-5

I.) 2(w + 13) = 3(5 - w)

Apply the distributive property to get 2w + 26 = 15 - 3w

Subtract 15 from both sides to get 2w + 11 = -3w

Subtract 2w from both sides to get 11 = -5w

Divide both sides by -5 to get 11/-5

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)

wfirfkfr/jjfi; jn; p/ojkfvlbvmkmgkgkkkgkkg

step-by-step explanation: